:root {
  --bg: #f4efe7;
  --bg-accent: #efe3d1;
  --card: rgba(255, 252, 246, 0.84);
  --text: #172121;
  --muted: #58626b;
  --line: rgba(23, 33, 33, 0.12);
  --brand: #9f2b22;
  --brand-dark: #6f1f19;
  --teal: #156064;
  --gold: #c38d2f;
  --shadow: 0 20px 60px rgba(30, 34, 44, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(195, 141, 47, 0.22), transparent 24%),
    radial-gradient(circle at top right, rgba(21, 96, 100, 0.18), transparent 22%),
    linear-gradient(180deg, var(--bg) 0%, #f9f6f1 48%, #fffdf9 100%);
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.topbar-links {
  display: flex;
  gap: 20px;
  color: var(--muted);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 32px;
  align-items: stretch;
}

.eyebrow,
.section-kicker,
.panel-label,
.note-label {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand);
  font-size: 0.82rem;
}

.hero h1 {
  margin: 12px 0 0px;
  font-size: 4.2rem;
  line-height: 0.94;
}

.hero-text,
.section-text,
.glass-card p,
.timeline-item p,
.results-note p,
.panel-card p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 28px 0 36px;
}

.button {
  padding: 14px 20px;
  border-radius: 999px;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--brand);
  color: white;
  box-shadow: var(--shadow);
}

.button.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.stats {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.stats li,
.panel-card,
.glass-card,
.result-card,
.model-card,
.future-card,
.results-note,
.timeline-item {
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.stats li {
  border-radius: 24px;
  padding: 20px;
}

.stats span {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--teal);
}

.stats label {
  color: var(--muted);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-card {
  border-radius: 28px;
  padding: 26px;
}

.status-card {
  min-height: 220px;
  background: linear-gradient(145deg, rgba(255, 248, 240, 0.95), rgba(255, 255, 255, 0.7));
}

.quote-card {
  background: linear-gradient(145deg, rgba(231, 245, 247, 0.95), rgba(255, 255, 255, 0.75));
}

.section {
  padding: 80px 0 24px;
}

.section.accent {
  position: relative;
}

.section.accent::before {
  content: "";
  position: absolute;
  inset: 40px -24px -16px;
  background: linear-gradient(180deg, rgba(239, 227, 209, 0.55), rgba(255, 255, 255, 0));
  border-radius: 40px;
  z-index: -1;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 10px 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.02;
}

.pipeline-grid,
.model-grid,
.results-cards,
.future-grid {
  display: grid;
  gap: 18px;
}

.pipeline-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 24px;
}

.glass-card,
.model-card,
.result-card,
.future-card {
  border-radius: 28px;
  padding: 24px;
}

.glass-card h3,
.model-card h3,
.result-card h3,
.future-card h3,
.timeline-item h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.diagram-frame {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.diagram-frame img {
  display: block;
  width: 100%;
  border-radius: 18px;
}

.model-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.filter-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.filter-chip:hover,
.filter-chip.is-active {
  transform: translateY(-1px);
  background: var(--text);
  color: white;
}

.model-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(159, 43, 34, 0.08);
  color: var(--brand-dark);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
}

.meta-list {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--muted);
}

.meta-row strong {
  color: var(--text);
}

.results-shell {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 18px;
}

.results-cards {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: 75rem;
}

.result-value {
  margin: 14px 0;
  font-size: 2rem;
  color: var(--teal);
  font-weight: 700;
}

.results-note {
  border-radius: 28px;
  padding: 24px;
  background: linear-gradient(155deg, rgba(255, 248, 237, 0.94), rgba(250, 255, 255, 0.74));
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 18px;
  border-radius: 28px;
  padding: 22px;
}

.timeline-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--text);
  color: white;
  font-family: "IBM Plex Mono", monospace;
}

.future-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.future-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(237, 247, 247, 0.7));
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: riseIn 620ms ease both;
}

@media (max-width: 960px) {
  .hero {
    min-height: auto;
  }

  .hero-grid,
  .results-shell,
  .pipeline-grid,
  .model-grid,
  .results-cards,
  .future-grid {
    grid-template-columns: 1fr;
  }
  
  .results-cards {
    width: 100%;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .stats {
    grid-template-columns: repeat(3, minmax(0, 3fr));
    max-width: 100%;
  }
}

@media (max-width: 640px) {
  .page-shell {
    padding: 16px;
  }

  .hero h1 {
    max-width: none;
    font-size: 2.2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}